import Vue from 'vue'
import VueRouter from 'vue-router'
// import Home from '../views/Home.vue'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { 
      path: '/home', 
      component: Home,
      redirect: '/welcome',
      children: [
        {path: '/welcome', component: Welcome},
        {path: '/users', component: Users},
        {path: '/rights', component: Rights},
        {path: '/roles', component: Roles},
        {path: '/categories', component: Cate},
        {path: '/params', component: Params},
        {path: '/goods', component: GoodsList},
        {path: '/goods/add', component: Add},
        {path: '/orders', component: Order},
        {path: '/reports', component: Report}
      ]
    }
  ]
});

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to为将要访问的路径
  // from 代表从那个路径跳转而来
  //next 表示放行
  if(to.path === '/login') return next();
  // 获取token
  const tokenStr =  window.sessionStorage.getItem('token');
  // 没有token， 强制跳转到登录页
  if (!tokenStr) return next('/login');
  // 放行
  next()
}); 

export default router
